hallucination 

A hallucination is something that someone experiences which is not really there.

Probably the best way to describe a hallucination is that it is like dreaming while you are awake. Not daydreaming, which comes from conscious thoughts, but the things contained in your sub-conscious which are projected from your mind and appear to blend in with the real world. Hallucinations can be quite deceiving (especially if it is a mix of a visual images, sound and even the sensation of touch) and, like dreams, sometimes you know it’s not real but other times you are unsure. Also like dreams, hallucinating can warp or distort your thinking, causing you to know things you shouldn’t and to completely forget things that are common sense, obvious and every day practice.

There are five different types of hallucination:
* visual (seeing things)
* auditory (hearing things)
* olfactory (smelling things)
* gustatory (tasting things)
* tactile (feeling things)
Often, two or more of these will be mixed together at the same time.

Hallucinating can happen to anyone at all, and at any age. Some people hallucinate on a daily basis, while others may only experience it once and even then very briefly in their entire life.
Taking certain drugs may result in hallucinating, while for others, they may hallucinate because they have a mental illness or even for no obvious reason at all (even though there probably is a reason). For those who don't use drugs to hallucinate, different things can trigger it such as being alone, being around too many people, too much noise, no noise, the dark, etc.

The ceiling began to ripple like water and I could hear screaming, but it was just a hallucination.

hallucination by ChocoboDragon November 14, 2005

encopretic olfactory hallucinations 

A description of the neuropsychological disorder wherein a person erroneously believes they have shit themselves.

Sadly, during his early childhood while visiting his dad in prison, Jared was dropped squarely on his head and ever since this unfortunate event he’s been having these disruptive encopretic olfactory hallucinations which has caused him to wear the now familiar “Kushner shit smelling face.”

encopretic olfactory hallucinations by Dr Bunnygirl June 15, 2020

vibratory hallucinations 

Perception of vibratory experiences without an external stimulus and with a compelling sense of their reality, usually resulting from habitual exposure to an object and/or occurence that in reality would cause a vibratory experience.

Pam feels her cellphone vibrate, she checks her phone to find no missed calls, text messages, or voicemail... and realizes she's having vibratory hallucinations, she thinks her cellphone is vibrating when in actuality it's not vibrating at all.

vibratory hallucinations by F. Bukhari January 25, 2011

Hallucination Machine 

A derogatory (but accurate) term used to refer to "generative AI" like ChatGPT, referring to the tendency of such programs to "hallucinate" invalid information and present it as truth.

"Yo did you hear that Google is adding generative AI to their voice assistant?"

"Wow, I can talk to the hallucination machine! What an innovation!"

Hallucination Machine by _Colonial_ October 9, 2023

visual hallucinations 

when you see things that aren’t really there. it could be objects, people, or just anything nobody else sees. it’s some creepy shit and if it happens to you, get it checked out with a doctor.

person #1: bro i keep seeing things moving in the corner of my eye that aren’t even there..

person #2: you’re probably having visual hallucinations man.

person #1: wtf is that?

person #2: when you see things that aren’t really there.

visual hallucinations by yourveryhotmomvia May 3, 2022

weed hallucination 

Olfactory hallucination of marijuana in a home or vehicle. Most often heard by motorists as "I smell marijuana" by law enforcement officers as an excuse (probable cause) to search a vehicle.

Even though I hadn't smoked pot since 1980, the state trooper was in the midst of a weed hallucination and insisted he could search the trunk of my car.

weed hallucination by ferolily December 14, 2014

Hallucinations 

are visual, ghost-like thingies you get mostly by taking ‘shrooms.

You can get hallucinations by shitting in a bottle, leaving it out for a week, and sniffing the Methane has that comes with it.

Hallucinations by Sad Piggie October 18, 2019